/*背景图*/

/*标题*/
h1{
    text-align: center;
    position: relative;
    top: 50px;
}
.form-horizontal{
    width:400px ;
    position: absolute;
    top: 150px;
    left: calc(50% - 200px);
    opacity: .8;
}
/*选项卡*/
.tab-menu{
    padding: 5px 15px;
    background-color: #fff;
}

/* 让第一个框隐藏 */
.tab-box .fide{
    display:none;
}
.tab-box .on{
    display:block;
}
.active{
    background-color: #f7ecb5;
}
